Madwort
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Brassicales
- family: Brassicaceae
- genus: Hormathophylla
- species: Hormathophylla spinosa
Bergshamra- Djursholm
Stockholm- Göteborg
Västra Götaland
Sweden
Denver
Colorado
United States